COMLEX LEVEL 1 FORM 110 EXAM
2026–2027
(352 QUESTIONS AND CORRECT
ANSWERS)
ALREADY GRADED A+ | 100%
VERIFIED
Osteopathic Medicine & Medical Licensing | National Board of Osteopathic Medical
Examiners (NBOME)
Key Domains: Osteopathic Principles and Practice (OPP/OMM), Gross Anatomy, Physiology,
Biochemistry, Pharmacology, Pathology, Microbiology, Behavioral Science, and Clinical
Medicine
This comprehensive COMLEX-USA Level 1 examination contains 352 multiple-choice
questions with correct answers and detailed rationales covering all major domains tested
on the actual examination.
Answer Format: All correct answers appear in bold and cyan, accompanied by concise
rationales.
,Question 1: L2 rotated left and sidebent left indicates the vertebra is in:
• Flexion
• Extension
• Neutral
• Cannot determine
Correct Answer: B
Rationale: Type II mechanics in lumbar spine: rotation and sidebending same direction
indicates extended position where facet joints are approximated.
Question 2: The thoracic duct empties into the venous system at:
• Right IJ and subclavian junction
• Left IJ and subclavian junction
• Right brachiocephalic vein
• SVC
Correct Answer: B
Rationale: Thoracic duct empties at left venous angle (left IJ + left subclavian). Right
lymphatic duct empties at right venous angle.
Question 3: Right PI ilium shows:
• Right ASIS inferior and lateral
• Right ASIS superior and medial
• Right PSIS inferior
• Right iliac crest lower
Correct Answer: A
Rationale: PI ilium: posterior rotation causes ASIS to appear lateral and inferior.
Question 4: Jugular foramen transmits:
• CN V
• CN VII
• CN X
• CN XII
,Correct Answer: C
Rationale: Jugular foramen: CN IX, X, XI + IJV.
Question 5: Primary respiratory mechanism includes all EXCEPT:
• CNS inherent motility
• CSF fluctuation
• Intracranial membrane mobility
• Voluntary diaphragm contraction
Correct Answer: D
Rationale: PRM: 5 components including involuntary motion. Voluntary diaphragm not
included.
, Question 6: Adrenal gland Chapman's point anteriorly:
• 1st ICS
• T11-T12 posteriorly
• 7th ICS at costochondral junction
• T7-T8 posteriorly
Correct Answer: C
Rationale: Anterior adrenal Chapman's: 7th ICS at costochondral junction.
Question 7: During CRI flexion phase:
• Sphenoid anterior rotation
• Temporal internal rotation
• Sacral base posterior and inferior
• Cranium narrows
Correct Answer: C
Rationale: Flexion: SBS superior, sacral base posterior/inferior (counternutation),
temporals externally rotate.
Question 8: C4-C5 restriction rotation right, sidebending right:
• Type I neutral
• Type II non-neutral
• Group curve
• Compensatory
Correct Answer: B
Rationale: Cervical type II: rotation and sidebending same side at single segment.
Question 9: Cisterna chyli located at:
• T10-T11
• L1-L2
• L3-L4
• S1-S2
2026–2027
(352 QUESTIONS AND CORRECT
ANSWERS)
ALREADY GRADED A+ | 100%
VERIFIED
Osteopathic Medicine & Medical Licensing | National Board of Osteopathic Medical
Examiners (NBOME)
Key Domains: Osteopathic Principles and Practice (OPP/OMM), Gross Anatomy, Physiology,
Biochemistry, Pharmacology, Pathology, Microbiology, Behavioral Science, and Clinical
Medicine
This comprehensive COMLEX-USA Level 1 examination contains 352 multiple-choice
questions with correct answers and detailed rationales covering all major domains tested
on the actual examination.
Answer Format: All correct answers appear in bold and cyan, accompanied by concise
rationales.
,Question 1: L2 rotated left and sidebent left indicates the vertebra is in:
• Flexion
• Extension
• Neutral
• Cannot determine
Correct Answer: B
Rationale: Type II mechanics in lumbar spine: rotation and sidebending same direction
indicates extended position where facet joints are approximated.
Question 2: The thoracic duct empties into the venous system at:
• Right IJ and subclavian junction
• Left IJ and subclavian junction
• Right brachiocephalic vein
• SVC
Correct Answer: B
Rationale: Thoracic duct empties at left venous angle (left IJ + left subclavian). Right
lymphatic duct empties at right venous angle.
Question 3: Right PI ilium shows:
• Right ASIS inferior and lateral
• Right ASIS superior and medial
• Right PSIS inferior
• Right iliac crest lower
Correct Answer: A
Rationale: PI ilium: posterior rotation causes ASIS to appear lateral and inferior.
Question 4: Jugular foramen transmits:
• CN V
• CN VII
• CN X
• CN XII
,Correct Answer: C
Rationale: Jugular foramen: CN IX, X, XI + IJV.
Question 5: Primary respiratory mechanism includes all EXCEPT:
• CNS inherent motility
• CSF fluctuation
• Intracranial membrane mobility
• Voluntary diaphragm contraction
Correct Answer: D
Rationale: PRM: 5 components including involuntary motion. Voluntary diaphragm not
included.
, Question 6: Adrenal gland Chapman's point anteriorly:
• 1st ICS
• T11-T12 posteriorly
• 7th ICS at costochondral junction
• T7-T8 posteriorly
Correct Answer: C
Rationale: Anterior adrenal Chapman's: 7th ICS at costochondral junction.
Question 7: During CRI flexion phase:
• Sphenoid anterior rotation
• Temporal internal rotation
• Sacral base posterior and inferior
• Cranium narrows
Correct Answer: C
Rationale: Flexion: SBS superior, sacral base posterior/inferior (counternutation),
temporals externally rotate.
Question 8: C4-C5 restriction rotation right, sidebending right:
• Type I neutral
• Type II non-neutral
• Group curve
• Compensatory
Correct Answer: B
Rationale: Cervical type II: rotation and sidebending same side at single segment.
Question 9: Cisterna chyli located at:
• T10-T11
• L1-L2
• L3-L4
• S1-S2
